Machine for packing biscuits



July 13 1926.

1592792 E. P. WEBSTER MACHINE FOB PACKING BISCUITS Original Filed NOV 2,1923 6 Sheets-sheet 1 INVENTOR BY 65. f 10.4mm If ATTORNEYO July 131926. 1,592,792

E. P. WEBSTER MACHINE FOR PACKING BESCUITS Original Filed 2 3 eSheets-Sht 2 as g w @v I 0? S x h co -i Q U i INVENTOR July 13,1926.1,592,792

, E. P. wEBsTER MACHINE'AFSR PACKING BISCUITS ori 'nal Filed Nov. 2,1923

6 Sheets-Sheet 5 l ulllw' [Mun 'HmMlllh' ATTORNEY-0 July "13 Q1926. v1,592,792

7 E. P. WEBSTER MACHINE FOR PACKING BISQUITS Original F q Nov. 21 2 eSheets-Shi; 4

w i $9 1k 66 d O I i 57 r-fl INVENTOR ATTORN EYo July 13 1926.

E; P. WEBSTER MACHINE FOR PACKING BISCUITS Original Q 9 6 Sheets-Sheet 5NHW 210 INVENTOR 672 MW 4 6 J dude/law 1% ATTORNEY E. P. WEBSTER MACHINEFOR PACKING BIsqUI'rs Orizihal Fifled 51 v! 2 1925 6 Sheets-Sht 6 W m mn W INVENTOR ATTORNEY- Patented July 13, 1926.

QFFMIE.

P- WEBSQER, OF NIAGARA FALLS, Ni l-W" TO TLE EFIREDDED WHEAT} COMPANY,or NIAGARA FALLs, new roan,

Yong;

A oonrona'rron on NEW MACHINE FOE PACKENG- BISCUITS.

Application, filed; November 2, 1 923. Serial 672,441,

This invention relates to machines for pfiQk t g articles in cartons,and has. to do more particularly with a machine by which articles of} afiragile structure, such as shredded wheat biscuits, may be packed incartons rapidly and without damage. The machine includes mechanism bywhich the articles are placed in layers in. the cartons mechanism whichstrips oft paper are, placed between adjacent layers of articlesso thatthe articles are kept separated and prevented from injuring one anotherin, transit. By way of illu ,ration, an G111- hodiment of the inventionwill be described which is suitable for packing shredded wheat biscuitsin cartons holding a dozen biscuits each, the biscuitsjbeing arrangedthe carton in four layers, but it is. to be understood that the utilityof the invention is not limited to this particular. product, nor to thepacking of cartons of this particular ize The packing machineillustrated in the glu -swings is adapted for use witha conveyor onwhich the biscuits are. carried through an oven and a drying chamberand. at a point outside the oven the biscuits are rcmovedfrom theconveyor by a. delivery dcvice which delivers them to the packing;machine. The. biscuits are delivered in successive groups, each groupcontaining three biscuits, as the present machine is arranged to packtwo cartons simultaneously, a delive y device is employed whichsimultaneousli delivers two groups or" three bis:- cuits each to themachine for introduction into the cartons.

In the accompanying drawings. in which one embodiment of the machine isillus' trated.

Fig. 1 is a. side view of a. packing ma chine with certain. par-ts shownin section.

2 is a plan view of the same,

Fig. 3 is a view in elevation of part of the machine on an enlargedscale, with certain Pa ts sho n in s ion Fig. 3;? a sectional view of adetail of the mechanism illustrated in Fig. 3,

ig. 4 is a, transverse sectional View through the pae iins m h neRenewed May 11, 1926.

Fig. 5 is a view partly in section and partly in, elevation of a detail01": the machine Fig. 6 an el-evational view of a part of the machineshowing certain associated devices,

7 is a. section on the line C C o t v a sectional view through theinsert paper,

Fig. 8 is Fig. 2,

Fig. 9 is of Fig. 7,

10 is a 2, and

Fig. ll is a The biscuits removed from the conveyor (not shown) aredelivered to tie packing mechanism in single tile on a platform 26,along which the biscuits are advanced by the rake of the deliverymechanism generdesignated' 20. This mechanism depo v is two groups 0tthree biscuits each at each operation and these groups are transferredby a plunger to biscuit supporting platforms 28. There are two suchplatiiouns and after a group of biscuits is placed on each platform theplatform is moved downwardly a step to lower the group of biscuits intothe carton. Upon four operations of the device each platform will havereceived four superposed layers of three biscuits each. that i5 1quantit; suiiicient to a carton and at the last operation of the seriesthe platform is withdrawn through the bottom of the carton; leaving thebiscuits within it. Then the filled on ejected from the machine and anempty carton takes its place. The cartons are fed in pairs and when twoempty cartons are in proper position the two platforms to the top of thecartons to receive the first layers of biscuits.

The machine isv provided. with paper inserting devices by which strip ofpaper. is placed on the top of the plattorin as soon as it reaches thetop of the carton and before the ever of biscn-itsis deposited on it.

section on the line DD of a view taken on the line EE section on theline A A of section on the line B B of This paper inserting mechanismoperates to lay a strip of paper over each layer of hiscuits placed onthe platform so that the adjacent layers are separated and the biscuitskept from injuring each other while the cartons are in transit. Thepaper inserting mechanism is also arranged to groove the paperlongitudinally so that the paper strips are thus stiffened and paper ofa stock lighter than would ordinarily be considered suitable may beused.

The cartons are brought into registryi with the platforms 28 bymechanism not shown, and these platforms are carried on rods 39pivotally mounted on a plunger frame 37, which is movable vertically onrods 38. The frame 37 is connected by vertical rods 58 (Fig. 6) to across head 52, which is connected by a rod 49 pivotally mounted theretoat 51 to a piston within vacuum cylinder l7 connected by suitable pipeto vacuum chamber 170. Vacuum is maintained within the chamber 170 by avacuum pump 168 connected to chamber 170 by pipe 5 169. This cylindertends to move the frame to its upward position at all times, but suchmovement is prevented except at the proper time, by spring pressed pawls55 (Fig. 5) pivoted to the frame at 55 and engaging the teeth 56 of thevertical rods 38. Within these rods are strips 57, also provided withnotches, and these strips are moved to carry their notches out ofregistry with the notches 56, by means of cams 57 on a shaft 58. Thesecams are operated by gears 57 advanced with a step by step movement bymeans of a ratchet wheel 7 6 loosely mounted on a shaft 76 of a rocklever 76, this lever carrying a pawl which engages the ratchet wheel.The lever is rocked by suitable driving mechanism (not shown). hen theframe is to be held against upward movement by the vacuum cylinder 47,the pawls 55 engage in notches 56, but when movement is to be permittedthe cams 57 raise the strips 57 so that their notches are out ofregistry with the notches 56, thereby forcing the pawls 55 free of therods 38 and permitting the movement of the frame relative to these rods.

The frame is moved upwardly in a single movement but is moved downwardlywith a step by step movement. For this purpose the frame carries racksG8 on each side, each rackhaving four teeth. A. pawl 69 pivoted at 70 ona reciprocating rod 71 is forced to outer position by a spring 72 and inthis position the pawl engages the rack. The rod 71 is mounted within asleeve 74 having a slot through which the pawl projects. The rod 71 isvertically reciprocated at the proper time by a link 7 5 connected withthe rock lever 7 6 and at each downward movement of the rod 71 the frameis moved downwardly a step where it is held against upward movement bythe engagement of the pawls 55 with the notches 56.

There are two platforms 28 mounted on rods 39 at either side of theplunger frame 37, and as a layer of biscuits is placed on each platformfor lowering into the carton, a strip of paper is fed over each layer ofbiscuits. The mechanism for feeding the paper is duplicated at each sideof the machine and only a single device will be described. The paper isdrawn from a supply roll 80, and passes around an idler roller 81, thendown around a floating roll 82. From this roll the paper is carried overa roll 8% and thence horizontally to a position over the plungerplatform. The roll 84 is supported in the free ends of arms 85 pivotallymounted to the machine frame at 86 and forced upwardly by springs 87 sothat roll 84 is held in contact at all times with an upper roll 90, thepaper passing between these rolls to the platform. As shown in Fig. 7,the rolls 84 and 90 are provided with interfitting ridges and grooves 88and 89, so that the paper 91 is grooved longitudinally at 92, as shownin Fig. 7. The spring 87 is of suflicient strength to force the rollsagainst each other to groove the paper as it passes between them. Theroll 90 is fast on a shaft 6 which carries a pinion d driven by a pinion0 which is driven through a Geneva gearing connection I) from a driveshaft a. The drive shaft a is constantly driven from a suitable sourceof power at a suitable rate of speed, but the roll 90 is given anintermittent drive so that paper is fed intermittently while the rolls84 and 90 remain constantly engaged with the paper. It is necessary thatthe paper should be constantly held so that continuous grooves will beformed in it, and it would not be satisfactory to employ a feedingmechanism for the paper by which the paper is gripped only during thefeeding movement.

As the strip of paper is fed horizontally over the platform, lengths ofit are severed as desired by a cutter h. This cutter is directlyoperated from the drive shafta and for this purpose the cutter h isprovided with a roller m which runs in. a cam groove Z in a disc 9mounted on a shaft Lhaving a sprocket j by which a driving connection ismade with the shaft (1. The cutter 71. operates in inclined grooves k ina suitable part of the machine frame and the cutter thus cuts across thepaper at an angle. The mechanism for feeding, grooving, and cutby' a camdevice g which is carried. on: an extension of the shaft 5 of theleft-hand cutting'device.

It will be seen that in' this packing machine, the articles to be packedin a carton arefed intermittently in groups which form layers in thecarton and over each group is placed a strip ofpaper which is groovedlongitudinally. This paper is fed by mechanism which operatescontinuously to grip the paper to produce the grooves, but is actuatedto feed paper only at appropriate intervals. By using a grooved paperthe paper stock may be much lighter than that which would ordinarily berequired in order to protect the biscuits from injury.

1 claim:

1. In a machine for packing biscuits in cartons, a biscuit supportadapted to receive superposed groups of biscuits, means for moving thesupport within the carton after it receives each group of biscuits, andmeans for placing a strip of paper over the support between adjacentgroups of biscuits received thereby, the said means including paperfeeding devices continuously gripping the paper and means for operatingthe feeding devices in correspondence with the movements of the support.

2. In a machine for packing biscuits in cartons, a biscuit supportadapted to work within the cartons, means for moving the support in aseries of steps in one direction, and means for feeding paper over thesupport, including feeding devices continuously gripping the paper andmeans for operating the feeding devices in correspondence with the stepby step movement of the support.

3. In a machine for packing biscuits in cartons, the combination ofmeans for receiving groups of biscuits and lowering them into a carton,and means for feeding paper over the groups so lowered, the said meansincluding feeding devices continuously gripping the paper and means foroper ating the feeding devices in correspondence with the action of thebiscuit receiving and lowering means.

4. In a machine for packing biscuits in cartons, a. biscuit supportadapted. to receive superposed layers of biscuits, means for moving thesupport in a series of steps in one direction to lower the layers ofbiscuits into a carton, and means for inserting strips of paper into thecarton between successive layers of biscuits on the support, the saidmeans including devices continuously grippine the paper and means foroperating the gripping devices to feed paper intermittently and inaccordance with the step by step movement of the support.

5. In a machine for packing biscuits in cartons, a biscuit support,means for moving the support step by step downwardly and returning it tothe same position, and means for feeding insert paper overthe support,the said feeding means being arranged to groore the paper;

6. in a machine for packing biscuits in cartons, a biscuit support,means for mov-" 11-5 the support step by step downwardly and returningit to its first position, and meansfor feeding insert paper over the support during the periods of rest of the step by step movement, the saidmeans being ranged to groove the paper.

7.111 amachine for packing biscuits in cartons, a biscuit support, meansfor moving the support step by step downwardly and returning it to itsfirst position, and means for feeding insert paper over the support, thesaid means being arranged to groove the paper longitudinally.

8. In a machine for packing biscuits, a biscuit support, means formoving the support step by step downwardly and returning it to its firstposition, and means for feeding insert paper over the support, the saidmeans including a pair of rolls having interfitting ridges and groovesand resilient means for holding the grooves in engagement.

9. In a machine for packing biscuits in cartons, a biscuit support,means for moving the support within a carton, and means for feedinginsertpaper over the support, the said means being arranged to groovethe paper.

10. In a machine for packing biscuits in cartons, a biscuit support,means for moving the support within a carton, and means for feedinginsert paper over the support, the said means including a pair of rollsgripping the paper and Geneva mechanism through which the rolls aredriven intermittently.

11. In a machine for packing biscuits in cartons, a biscuit support,means for moving the support to introduce biscuits into the cartons, andmeans for feeding insert paper in selected lengths over the support, thesaid means including feeding rolls continuously gripping the paper,means for operating the rolls intermittently to feed paper, and acutting mechanism actuated by the roll operating means.

12. In a machine for packing biscuits in cartons, a biscuit support,means for moving the support to introduce biscuits into the cartons, andmeans for feeding paper to be inserted between groups of biscuits withinthe cartons, the said means including a pair of rolls yieldinglygripping the paper at all times, means for rotating the rollsintermittently to feed paper, and means for cutting the papertransversely, the said means being operated in correspondence with theaction of the feeding means.

13. In a machine for packing biscuits, a biscuit support, means formoving the same step by step downwardly and returning it to firstposition, means for feeding insert paper intermittently adapted togroove the paper longitudinally and including rolls, spring tensionedmeans for holding said rolls in yielding engagement and Geneva gearing,and means for cutting the insert paper transversely having a driveconnection with the insert paper feeding means and including :1 cutterWorking obliquely in 10 inclined guides and carrying a roller, and amember having an endless cani track Wherein said roller Works.

In testimony whereof I affix my signature.

EARL P. lYEBSTER.

